XPTable.Models.Table.IsReservedKey C# (CSharp) Method

        protected internal bool IsReservedKey(Keys key)
        {
            if ((key & Keys.Alt) != Keys.Alt)
            {
                Keys k = key & Keys.KeyCode;

                return (k == Keys.Up ||
                    k == Keys.Down ||
                    k == Keys.Left ||
                    k == Keys.Right ||
                    k == Keys.PageUp ||
                    k == Keys.PageDown ||
                    k == Keys.Home ||
                    k == Keys.End ||
                    k == Keys.Tab);
            }

            return false;
        }